Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantas pessoas compareceram ao Jogo Nº 31?
 ###Tabelas: CREATE TABLE performances_by_nations (performances_by_nations_id AUTO_INCREMENT PRIMARY KEY, # INT, Nation VARCHAR, Winners INT, Runners-up INT, 3rd Place INT, 4th Place INT) CREATE TABLE line_honours_results_top_10 (line_honours_results_top_10_id AUTO_INCREMENT PRIMARY KEY, Position INT, Sail Number VARCHAR, Yacht VARCHAR, State/Country VARCHAR, Yacht Type VARCHAR, LOA (Metres) VARCHAR, Skipper VARCHAR, Elapsed Time d:hh:mm:ss VARCHAR) CREATE TABLE lpga_tour_15 (lpga_tour_15_id AUTO_INCREMENT PRIMARY KEY, No. INT, Date VARCHAR, Tournament VARCHAR, Winning score VARCHAR, To par VARCHAR, Margin of victory VARCHAR, Runner(s)-up VARCHAR, Winners share ( $ ) INT) CREATE TABLE delisted_players_who_did_not_play_a_senior_game_for_geelong (delisted_players_who_did_not_play_a_senior_game_for_geelong_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Date of birth (age when delisted) VARCHAR, Draft details VARCHAR, Rookie list VARCHAR, Senior list VARCHAR) CREATE TABLE second_round (second_round_id AUTO_INCREMENT PRIMARY KEY, Match No. VARCHAR, Home Team VARCHAR, Score VARCHAR, Away Team VARCHAR, Attendance VARCHAR)  
SELECT Attendance FROM second_round WHERE Match No. = 31